Executive Management Team

Frank E. Celli

Chief Executive Officer

Mr. Celli is a lifelong waste industry veteran. Most recently he was co-founder and CEO of Interstate Waste Services from October 2000 until November 2006, during which time the company achieved growth of over $150 million in revenue. During his time at Interstate Waste he was responsible for all aspects of the business including collection, recycling, landfills and emerging technologies.

After selling his interests in Interstate Waste he transitioned to BioHiTech America. With over 25 years of Waste Industry experience, Mr. Celli has leveraged his knowledge of the traditional waste industry to facilitate the development of the Revolution and Eco-Safe Digester lines and BioHiTech Cloud to begin the transformation of the organic waste industry.

He also serves as a director and officer of Entsorga West Virginia, the first resource recovery facility currently being constructed in the United States that will utilize Entsorga’s proprietary HEBioT mechanical biological treatment (“MBT”) system. Mr. Celli graduated from Pace University’s Lubin School of Business.

Robert A. Joyce


Bob has spent the last 30 years in the technology and engineering workplace. His diverse background includes design and development of one of the original 3D CAD systems, implementation support of some of the worlds largest cable networks, development of patent pending mobile location technologies and leadership of Inc 500 listed private companies. Previous employment includes industry leaders Arthur D. Little, Inc., Sun Microsystems, Perfect Order and Versatile Systems.

In Bob's role as President, his responsibilities include day to day management of the company’s expanding channel partner network, research and development direction, engineering, manufacturing execution, sales growth, marketing and service to our customers.

Bob is a trustee of Harrisburg University and sits on the boards of The Technology Council of Central Pennsylvania, WorkXpress and Telkore. He resides in central PA with his wife and two sons.

Brian C. Essman

Chief Financial Officer

Mr. Essman has over 30 years of experience as a senior financial executive with a wide range of industry experiences that have included strategic, operational and financial leadership roles.

Most recently, he was the CEO of Data Communiqué, Inc. a Havas Company from 1997-2014 where he was responsible for overall leadership, including strategy and tactics of the Software-as-a-Service company. From 1997 to 2007 he was COO – CFO and contributed to the growth of the company’s technology/data, printing and letter shop services and developed pricing and cost structures that created efficiencies within the company that increased gross margin rates and technology sales threefold.

Mr. Essman was previously the Chief Financial Officer at a Fidelity portfolio company and a Senior Manager and CPA at PricewaterhouseCoopers.

Brian graduated with a BS in Accounting with High Honors from Boston College’s School of Management. 

Michael Schmidt

Executive Vice President, Strategic Growth and Initiatives

Mike has served in numerous positions in the waste industry over the years and has extensive experience in banking, financial analysis, operations, and community relations.  Mike has assumed responsibility for the business operations and financial performance of our HEBioT facility in Martinsburg, West Virginia and will be responsible for the continual growth of this exciting line of business.

Michael served as WCA’s Vice President of Business Development for 2 years, where he helped to enhance the value to WCA’s shareholders by over $36m.

Prior to joining WCA, Michael spent 13 years at Comerica Bank in Detroit, Michigan where, he built a career by expanding his business and strategic thinking skills through positions that included client relationship manager and senior credit officer, and was instrumental in the formation of Comerica’s Environmental Service Department.

Michael holds a Bachelor of Business Administration and a Master of Business Administration from the University of Michigan-Dearborn, with a major in Finance.  He is also a Certified Financial Risk Manager.

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80 Red Schoolhouse Rd, Suite 101
Chestnut Ridge, NY 10977